64414989189 has 6 divisors (see below), whose sum is σ = 93043873286. Its totient is φ = 42943326120.

The previous prime is 64414989139. The next prime is 64414989227. The reversal of 64414989189 is 98198941446.

64414989189 is a `hidden beast` number, since 6 + 441 + 4 + 9 + 8 + 9 + 189 = 666.

It can be written as a sum of positive squares in only one way, i.e., 63899245089 + 515744100 = 252783^2 + 22710^2 .

It is not a de Polignac number, because 64414989189 - 2²⁷ = 64280771461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64414989139) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3578610502 + ... + 3578610519.

Almost surely, 2^64414989189 is an apocalyptic number.

It is an amenable number.

64414989189 is a deficient number, since it is larger than the sum of its proper divisors (28628884097).

64414989189 is a wasteful number, since it uses less digits than its factorization.

64414989189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7157221027 (or 7157221024 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 63.

The spelling of 64414989189 in words is "sixty-four billion, four hundred fourteen million, nine hundred eighty-nine thousand, one hundred eighty-nine".